I've heard it's bad for creative stuff, but really good if you know your requirements. For payment processing, that's a good thing. As I understand it, the pr

I've heard it's bad for creative stuff, but really good if you know your requirements. For payment processing, that's a good thing. As I understand it, the productivity isn't too bad, as the programmers egg each-other on. Sort of like having an obnoxious micro-manager over your shoulder, without the obnoxious bit.